Not one method talks about Sri Hari dhyana. Sri Hari responsible for the sun, rain, grain, fire, food, money, occasion, health, state of mind, time, company, etc.
In every party, we thank the host for organizing the party. If this can be done, how can we forget Sri Hari while eating ? He is providing us everything for countless of births. How can we forget him?

SriMadacharaya Tattvavada’s Eating guidelines

Meat/Fish/Eggs to be strictly avoided, maybe obvious to some, maybe not 🙂 KaliYuga all these are banned.
Onion, Garlic – Strictly avoided
Tomato, Carrot, BeetRoot, Drumsticks – To be avoided

Eating Procedure

Because of effect of kaliyuga, people have to eat wherever possible.
The dhyana mentioned below, each morsel reaches Vaishwanara through Mukhya Prana; so maintain satvik food to the best of your abilities.
Sri Hari will overlook lopas and helplessness(not for banned items); but don’t make that an excuse.

Bhojana is to treated like a Yagna !!! Whatever you put in mouth, offer to bimba Sri Hari; let Sri Hari assimilate it and supply you with the energy.
Naham Karta Hari Karta !!! If Sri Hari process the food, you will get back only the best Sattva nutrition.

Take a little water in your right hand and sprinkle it around your plate creating a square mandala. Next sprinkle a little water on the food and place some tulsi on it. This sprinkling of water on food is providing clothing to prana. Upanishads call water as clothing for prana.

If your meal has rice, eat five morsels of plain rice as mentioned below. If your meal does not have rice; eat five morsels of whatever you have in your plate.

Pancha Prana Ahuti

Morsel 1# Om Pranaya Swaha
i) Security Guard for East is satisfied
ii ) Abhimana Devata for Prana Vayu is satisfied
iii) Then Surya is satisfied
iv) Then Presiding Devata for eyes is satisfied
v) Then Diety for Surya Mandala is satisfied
Like this Sri Hari roopas in Surya are satisfied
vi) Then ‘dyu’ namaka Bharati Devi is satisfied
vii) Then Mukhya Prana is satisfied
viii) Then MahaLakshmi is satisfied
ix) Then SatChitAnanda VaishwaNara roopa of Sri Hari is satisfied